The invention discloses a method for jointly estimating vehicle mass-road gradient under the consideration of influence of braking and turning. The method includes steps of 1, acquiring data, to be more specific, 11, acquiring vehicle driving state data by data acquisition devices, 12, combining the vehicle driving state data and vehicle intrinsic parameters with one another and computing relevant parameters required by models; 2, building relation models of vehicle mass, road gradient and the vehicle driving state data on the basis of vehicle dynamic models; 3, building least square mass estimation models and Kalman filter gradient estimation models on the basis of the relation models of the vehicle mass, the road gradient and the vehicle driving state data; 4, jointly estimating the vehicle mass and the road gradient by means of nested loop iteration; 5, eliminating the influence of braking and turning in state maintenance modes. The method has the advantages that the influence of braking and turning is considered in real vehicle driving procedures, and accordingly the vehicle mass and the road gradient can be dynamically jointly estimated in real time.